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Skov DA 60-920 Technical User Manual

Equal pressure unit
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DA 60-920
Equal Pressure Unit
Technical User Guide
English For other language variants of this document we refer to:
Español Para otras variantes del idioma de este documento, visite:
Français Pour les versions dans d'autres langues de ce document veuillez consulter:
http://docs.skov.com/1216
604317 • 2022-08-09

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  • Page 1 DA 60-920 Equal Pressure Unit Technical User Guide English For other language variants of this document we refer to: Español Para otras variantes del idioma de este documento, visite: Français Pour les versions dans d'autres langues de ce document veuillez consulter: http://docs.skov.com/1216...
  • Page 3 The date of change appears from the front and back pages. Note • All rights belong to SKOV A/S. No part of this manual may be reproduced in any manner whatsoever without the expressed written permission of SKOV A/S in each case.

  • Page 4: Table Of Contents

    DA 60-920 1 Product description ............................ 6 2 Product survey ...............................  7 Above roof .......................... 8 Lead-through.......................... 9 Attic/section .......................... 10 Inlet............................ 11 3 Mounting guide.............................  13 Recommended tools........................  13 Mounting examples .........................  15 3.2.1 Placement .......................... 15 3.2.2 Select adhesive air jet or free air direction.................  15 Placement in the livestock house ..................
  • Page 5 Cleaning............................  46 5.1.1 Fan.............................  46 Recycling/Disposal ........................ 46 6 Troubleshooting instructions ........................ 47 7 Technical data ..............................  48 DA 60-920 equal pressure ......................  48 ECT 920-1E equal pressure fan .................... 49 7.2.1 Erp/Ecodesign ECT 920-1E.......................  50 Dimensioned sketch ........................  51 7.3.1 DA 60-920 equal pressure ......................

  • Page 6: Product Description

    DA 60-920 1 Product description The DA 60-920 equal pressure unit is an air inlet for equal pressure that combines high output with low air ve- locity in the animal zone. DA 60-920 supplies up to 20,000 m /hour and the output is adjusted steplessly by the fan and the parallel mo- tion system.

  • Page 7: Product Survey

    DA 60-920 2 Product survey Above roof Lead-through Attic/section Inlet Technical User Guide...

  • Page 8: Above Roof

    The net is hot-dip galvanized with a net of 10x25 mm and a height of 350 DA 60-920 is supplied unassembled. 433489 DA 60-920 rain screen for roof cap, gray 433589 DA 60-920 rain screen for roof cap, black As standard DA 60 is supplied with 2 rain screens on the roof cap.

  • Page 9: Lead-Through

    DA 60-920 2.2 Lead-through 530155 Joint sealer, Sikaflex 221, gray 300ml 530156 Joint sealer, Sikaflex 221, black 300ml Used for sealing ducts. 1 per 20 DA 920. 434118 DA 920 sealing band, gray 434119 DA 920 sealing band, black DA 920 sealing band (3250x156 mm) are always used as a transition be- tween the DA 920 duct and DA 920 roofing sheet.

  • Page 10: Attic/Section

    433529 DA DA 920 duct f. fan/attic 975 mm, gray 433530 DA DA 920 duct f. fan/attic 975 mm, black DA 920 duct with shoe for suspension of fan unit. Is used when mounting DA 60-920 equal pressure in the attic space. Technical User Guide...

  • Page 11: Inlet

    433520 DA 60-920 outlet funnel Free Flow, black The outlet funnel and the bottom plate are made from polyurethane with a material thickness of 30mm to counteract condensation. Always remember to order DA 60-920 exhaust, Free Flow, accessories (433519). 433533 DA 60-920 outlet, accessories Pulling system and wire is delivered unassembled.
  • Page 12 DA 60-920 433521 DA 60-920 intermediate plate, black Is supplied complete with control levers for 150mm opening. Approx 50% of the air is led out onto the intermediate plate which reduces the air velocity out of the air supply unit and thus also the velocity at the floor.

  • Page 13: Mounting Guide

    DA 60-920 3 Mounting guide Check that the parts ordered are present and undamaged before starting work. Please read through the entire guide before starting assembly and fitting. If the DA 60- 920 is installed in areas with ice/snow slide risk, the necessary measures must be taken to avoid damage to the exhaust units and wall exhausts.
  • Page 14 DA 60-920 Item Description Hammer drill Jigsaw Ladder Screwdriver Adjustable spanner Socket wrench set Allen key Water pump pliers Spirit level Try square Technical User Guide...

  • Page 15: Mounting Examples

    H ≤ 1.2 m, it should be dimensioned as an adhesive air jet H > 1.2 m, it should be dimensioned as free air direc- tion As a general rule, SKOV recommends a placement so that the air is distributed as an adhesive jet. Technical User Guide...

  • Page 16: Placement In The Livestock House

    Check that all DA 60-920 units can be placed freely in relation to other equipment that might be fitted after- wards, such as feed hoist, water etc., all still in accordance with the agreement with the builder.

  • Page 17: General Drawing With Roof Cap

    DA 60-920 3.5 General drawing with roof cap General drawing with references for using the various parts in the DA 60-920. Mounting the duct [} 19] Mounting duct connector on the duct [} 21] Mounting the fan [} 21] Mounting in the attic [} 22] Mounting the bell mouth [} 25]...

  • Page 18: General Drawing In The Attic

    DA 60-920 3.6 General drawing in the attic General drawing with references for using the various parts in the DA 60-920. Mounting the duct [} 19] Mounting duct connector on the duct [} 21] Mounting the fan [} 21] Mounting in the attic [} 22] Mounting the outlet funnel [} 33], Mounting the intermediate and bottom plate [} 35], Mounting...

  • Page 19: Mounting The Duct

    DA 60-920 3.7 Mounting the duct Join the ducts 2 and 2. Mount clips at the top and bottom of the ducts. Attach support rings on the middle of the ducts, see sec- tion Mounting duct connector on the duct [} 21].
  • Page 20 DA 60-920 Several duct sections are joint with the arrow up. For each section the ducts are turned 90 ° to that they bond when mounted. The ducts are connected with duct connectors or storm protection kits, see section Mounting duct connector on the duct [} 21].

  • Page 21: Mounting Duct Connector On The Duct

    DA 60-920 3.8 Mounting duct connector on the duct The duct connectors consist of 2 halves and 4 M6x75 mm bolts and 4 M6 nuts. Place the 2 halves with the holes facing each other. Mount the duct connector on the duct with 2 M6x75 mm bolts and M6 nuts.

  • Page 22: Lead-Through In Ceiling

    DA 60-920 3.10 Lead-through in ceiling Hang up a weight and mark the center and draw a hole, see table and drawing below. At the plastic membrane/vapor barrier (see arrow) the hole should be cut 30 mm smaller, which provides a good seal.

  • Page 23: Mounting The Net

    DA 60-920 3.11.2 Mounting the net Mount 4 screws on the bell mouth using 8 washers and 4 M6 nuts. Place the net on the 4 screws. Mount the net using 4 washers and 4 M6 nuts. Technical User Guide...

  • Page 24: Mounting The Anchorage

    DA 60-920 3.11.3 Mounting the anchorage Insulation Wooden frame Joist A wooden frame is built around the hole for the duct an- choring to attach to. For lead-throughs in ceilings, 4 brackets are installed on the anchoring with M6x16 mm bolts and nuts.

  • Page 25: Mounting The Bell Mouth

    DA 60-920 3.12 Mounting the bell mouth Mount the cone bracket on the reducing piece. Place the duct connector on the cone bracket. Make sure that the cone bracket meshes with the duct connector. Mount duct connector loosely with 4 bolts and 4 nuts.
  • Page 26 DA 60-920 Mount duct on the duct end and into the duct connector. Tighten the duct connector, see section Mounting duct connector on the duct [} 21]. Assemble bell mouth and transition piece using 8 pcs. 6x25 mm screws and 8 pcs. washers.

  • Page 27: Roof Duct In Roof

    DA 60-920 3.13 Roof duct in roof Establish the center of the duct below the roof. Drill a small hole from the inside. Mark the center for the 2 offset circles. Draw the 2 circles with a radius of 500 mm.

  • Page 28: 920 Suspension System On Roofing Sheet

    DA 60-920 Apply the joint sealant in the joint and allow the sealing band to overlap by approx. 150 mm. Also apply joint sealant to the top of the sealing band all the way around the duct. 3.17 DA 920 suspension system on roofing sheet Place the suspension on the roofing sheet.
  • Page 29 DA 60-920 Mount 4 42x30 mm washers with 2 lock nuts each. Mount the DA 920 sealing band on the transition be- tween duct and roofing sheet. Pull the band tight all way around. Apply a strip of joint sealer where the sealing band starts.

  • Page 30: Mounting The Flex Flashing

    DA 60-920 3.18 Mounting the flex flashing 3.18.1 Between roofing sheets and DA 920 smooth roofing sheet The flashing is always used for transitions between the building roofing sheets and the DA 920 smooth side roofing sheets. The flashing must be placed underneath the roofing sheet over the duct.

  • Page 31: Mounting The Neoprene Cloth

    DA 60-920 3.19 Mounting the neoprene cloth Flashing with neoprene cloth is used for short roof in- lets where the duct is fixed to the ceiling structure and thus firmly anchored. Cut out an adequate hole in the roofing sheet, shown here with a 20°...

  • Page 32: Mounting The Wire Suspension

    DA 60-920 Fit 4 wire mesh holders using 4 pcs. 6X25 mm screws and 4 washers. The groove in the wire mesh holder should mesh with the wire at the bottom of the mesh. Drill 8 holes ø5.5 mm holes in each rain screen after marking them up.

  • Page 33: Mounting The Outlet Funnel

    DA 60-920 3.22 Mounting the outlet funnel Mount screw M8x65 and nut. Work as a safety stop. Pull ø4 mm wire through the inner and outer telescope section and across the wire wheel. Mount bracket with wire wheel on the outer telescope with 4 M8x16 screws and nuts.
  • Page 34 Mount the outer telescope in the outlet fun- nel and clamp using 4 M8x60 screws and nuts. Tighten the 4 nuts loosely. Mount bracket for wire wheel on DA 60-920 clamp using 4 M8x16 screws and nuts. The thread on the screws must turn up- wards.

  • Page 35: Mounting The Intermediate And Bottom Plate

    DA 60-920 Pull the wire through the slot and around the wire wheel. Mount the outlet funnel on the duct with clamp see section Mounting duct connector on the duct [} 21]. Tighten the clamp and nuts. Apply joint sealer between duct and outlet funnel.
  • Page 36 DA 60-920 Mount the guide rods in the 4 intermediate plate holes using washers and nuts. Lift the intermediate plate and put the 4 guide rods into the 4 bushings. Mount 4 spring pins in the 4 guide rod holes.

  • Page 37: Mounting The Recirculation Fan

    DA 60-920 3.24 Mounting the recirculation fan Mount the recirculation fan on the plate with 4 M6x90 screws, washers and nuts. The connection box is fixed to the plate with 2 5x20 screws. For electrical connection see section Installation guide.

  • Page 38: Mounting The Pull Rod/Suspension

    DA 60-920 3.25 Mounting the pull rod/suspension The number of meters of pull rod is measured. The pull rods are assembled with splicing sleeve and by the end closest to the winch motor an eye joiner is fitted, this is where the DA 60 mounting set for winch motor is mounted.

  • Page 39: Installation Guide

    DA 60-920 4 Installation guide 4.1 Electrical connection Installation, servicing and troubleshooting of all electrical equipment must be carried out by quali- fied personnel in compliance with the applicable national and international standard EN 60204-1 and any other EU standards that are applicable in Europe.

  • Page 40: Letter Code

    DA 60-920 4.2.3 Letter code The letter codes used in accordance with standard IEC/EN61346-2. Protective equipment RCCB / Controller Power supply Switch Motor con- Cable Initial fuse Protective motor isolator troller Contactor Motor switch 4.3 Cable plans and circuit diagrams 4.3.1 Recirculation fan...

  • Page 41: Connection In Connection Box

    DA 60-920 4.3.1.2 Connection in connection box Technical User Guide...

  • Page 42: Circuit Diagram

    DA 60-920 4.3.1.3 Circuit diagram 4.3.1.3.1 ON/OFF Example of terminal number For correct connection see the setup menu Show connections in the controller Alarm Connection box Recirculation fan Technical User Guide...

  • Page 43: Stepless

    DA 60-920 4.3.1.3.2 Stepless Alarm Connection box Connection box Recirculation fan Technical User Guide...

  • Page 44: Equal Pressure Fan

    DA 60-920 4.3.2 Equal pressure fan 4.3.2.1 Cable plan Controller Connection box 4.3.2.2 Terminals in fan Terminals in fan External Internal Technical User Guide...

  • Page 45: Circuit Diagram

    DA 60-920 4.3.2.3 Circuit diagram Connection box Technical User Guide...

  • Page 46: Maintenance Instructions

    When washing the inside of the ducts, fan blades must stand still. Remember that fans do not stand high-pressure cleaning. If the inside of the duct needs to be cleaned extra thoroughly SKOV A/S recommends washing from above. When washing the fan, the fan must rotate.

  • Page 47: Troubleshooting Instructions

    DA 60-920 6 Troubleshooting instructions Fault symptom Error Solution Check the size of the protective motor switch. Replace motor protection, change The fan does not start. Motor protection switches off. to correct size. Check whether the fan motor is blocked.

  • Page 48: Technical Data

    DA 60-920 7 Technical data 7.1 DA 60-920 equal pressure Electric recirculation fan V AC 230 +/- 10% Rated voltage V AC 175 – 280 Operating voltage 50 / 60 Frequency 0.62 Max. power consumption At 230 V AC supply Max.

  • Page 49: Ect 920-1E Equal Pressure Fan

    DA 60-920 7.2 ECT 920-1E equal pressure fan 409161 ECT 920-1E Electrical V AC 230V ±10% Rated voltage V AC 200 - 277 Operating voltage Frequency Max. power consumption At 230 V AC supply Max. input power (P1) 0-10 Regulation ability...

  • Page 50: Erp/Ecodesign Ect 920-1E

    DA 60-920 7.2.1 Erp/Ecodesign ECT 920-1E Fan type ECT 920-1E EU 327/2011 Lot 11 Ecodesign 57.8 Efficiency classification Efficiency (η) Measurements set-up Static Efficiency category VSD required 2014 Year of production ZIEHL-ABEGG Name of manufacturer 409161 Item number 0.94 Motor power input 4.27...

  • Page 51: Dimensioned Sketch

    DA 60-920 7.3 Dimensioned sketch 7.3.1 DA 60-920 equal pressure Dimensions in mm. Technical User Guide...
  • Page 52 SKOV A/S • Hedelund 4 • Glyngøre • DK-7870 Roslev Tel. +45 72 17 55 55 • www.skov.com • E-mail: skov@skov.dk...

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